Pump and tube set thereof

• US 20030181866A1
• Filed: 03/21/2002
• Published: 09/25/2003
• Est. Priority Date: 03/21/2002
• Status: Active Grant

• Current Assignee: Hospira Incorporated (Pfizer Inc.)
• Original Assignee: Hospira Incorporated (Pfizer Inc.)
• Inventors: Duggan, Brendan J., Halloran, Damian P., OʼDonnell, Philip A., Clinton, Colm D., Fabozzi, Ricky C., Regan, Barry J., Abrahamson, Kent
• Granted Patent: US 6,942,473 B2
• Time in Patent Office: Days
• US Class Current: 604/250
• CPC Class Codes: A61M 39/287 Wedge formed by a slot having varying width, e.g. slide clamps
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member

Abstract

A pump includes a housing defining a tube receiving portion and a blade mounted for reciprocating movement between first and second positions. In its first position, the leading edge of the blade compresses a length of tube against a first surface disposed in the tube-receiving portion, while in the second position, the blade does not compress the tube. The tube-receiving portion can receive the tube directly or indirectly through a tube set detachably mounted to the housing. The tube set includes a tube and a base having first and second end portions that respectively define first and second tube-receiving apertures for slidably receiving a length of the tube therethrough. The base has a first surface constructed to engage the length of tube between the apertures for compression by the pump blade.

Claims

1. A tube set comprising:

a base having a first end portion and a second end portion, said first end portion defining a first tube-receiving aperture therethrough, said second end portion defining a second tube-receiving aperture therethrough, said first and second tube-receiving apertures constructed to slidably receive a length of tube therethrough, said base further defining a first surface constructed to engage at least a portion of a circumference of length of tube disposed in said base between said first end portion and said second end portion of said base, said base constructed for insertion into a tube set receiving portion of a pump; and

a tube slidably disposed on said base, said tube passing through said first and second tube-receiving apertures, at least a portion of said tube constructed to be compressed against said first surface of said base.

2. A tube set in accordance with claim 1, wherein said first surface has a substantially arcuate cross-section.

3. A tube set in accordance with claim 2, wherein said first surface is constructed to engage at least about 120°

of a circumferential surface of said tube along a length of said surface.

4. A tube set in accordance with claim 1, further comprising a slide clamp constructed to selectively restrict flow through said tube, said slide clamp slidably mounted on said base, said slide clamp defining a channel therethrough, said tube disposed within said channel defined by said slide clamp, said channel having a first end portion and a second end portion, said first end portion of said channel configured so as not to compress said tube when said tube is disposed therein, said second end portion of said channel configured to compress said tube when said tube is disposed therein, whereby flow through said tube is at least substantially occluded when said tube is disposed in said second end portion of said channel.

5. A tube set in accordance with claim 1, wherein said base comprises at least one tab member for slidably engaging at least one slot on said tube set receiving portion of a pump.

6. A tube set in accordance with claim 5, wherein said at least one tab member is substantially planar and extends substantially parallel to said first and second tube-receiving apertures.

7. A tube set in accordance with claim 5, further comprising a slide clamp constructed to selectively restrict flow through said tube, said slide clamp defining a channel therethrough, said tube disposed in said channel defined by said slide clamp, said slide clamp constructed to be slidable through an aperture defined by a tube set receiving portion of a pump between a first position in which said slide clamp protrudes into an aperture defined by a tube set receiving portion of a pump and a second position in which said slide clamp does not protrude into an aperture defined by a tube set receiving portion of a pump, said slide clamp constructed to limit slidable movement of said at least one tab member in at least one slot on a tube set receiving portion of a pump and thereby prevent removal of said tube set from a tube set receiving portion of a pump when said slide clamp is in said first position, said slide clamp constructed to permit slidable movement of said at least one tab member in at least one slot on a tube set receiving portion of a pump when said slide clamp is in said second position and thereby permit removal of said tube set from a tube set receiving portion of a pump when said slide clamp is in said second position.

8. A tube set in accordance with claim 7, wherein said channel defined by said slide clamp has a first end portion and a second end portion, said first end portion of said channel configured so as not to compress said tube when said tube is disposed therein, said second end portion of said channel configured to compress said tube when said tube is disposed therein, whereby flow through said tube is at least substantially occluded when said tube is disposed in said second end portion of said channel, wherein said tube is disposed in said second end portion of said channel when said slide clamp is in said second position thereof, and wherein said tube is disposed in said first end portion of said channel when said slide clamp is in said first position thereof.

9. A tube set in accordance with claim 1, wherein said tube comprises a first end constructed for fluid communication with a fluid source, and wherein said tube comprises a second end constructed to deliver a fluid to a patient.